This part of ISO 2846 will allow screen printers to obtain different sets of inks which will produce a similar colour
when printed on the same substrate (paper, board, plastic or fabric etc.). In addition, it will allow colour separations
for screen printing to be based on known colour standards. The colorimetric characteristics specified may only be
obtained when the inks are printed on the reference substrate. However, similarity of two inks on a reference
substrate will ensure similarity on another substrate.